1. Postgraduate Program in Nanosciences, Franciscan University-UFN,Santa Maria, RS, Brazil
2. Laboratory of Nanostructured Magnetic Materials - LAMMAN, Franciscan University, Santa Maria, RS, Brazil
3. Postgraduate Program in Toxicological Biochemistry, Federal University of Santa Maria-RS, Santa Maria, Brazil
4. Department of Morphology, Federal University of Santa Maria-RS, Santa Maria, Brazil